CN102140913A - Small-diameter directional gyro inclinometer for drilling - Google Patents
Small-diameter directional gyro inclinometer for drilling Download PDFInfo
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- CN102140913A CN102140913A CN2011101238884A CN201110123888A CN102140913A CN 102140913 A CN102140913 A CN 102140913A CN 2011101238884 A CN2011101238884 A CN 2011101238884A CN 201110123888 A CN201110123888 A CN 201110123888A CN 102140913 A CN102140913 A CN 102140913A
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Abstract
The invention provides a small-diameter directional gyro inclinometer for drilling. The small-diameter directional gyro inclinometer consists of an aboveground control device and an underground measurement device. The underground measurement device comprises an inertial short section based on a flexible gyro, wherein the inertial short section of the gyroscope includes a sensor consisting of two small flexible gyros with two degrees of freedom and three orthogonal quartz accelerometers; the two small flexible gyros with two degrees of freedom are orthogonal to each other and are connected with each other through a rotary frame; the three orthogonal quartz accelerometers are connected with one another through the rotary frame; and the gyros and the accelerometers are directly mounted on an inertial body through a location plane to constitute an inertial measurement assembly which is supported on a casing through a pair of bearings. The angles of the inclinometer in the three axial directions can be obtained by resolving an inertial navigation equation during logging so as to obtain the real-time well measurement information and output the azimuth information of an oil well. The small-diameter directional gyro inclinometer has the advantages of small size, low cost, high accuracy, high measurement speed, continuity in measurement, high reliability, high resistance to temperature and pressure, and wide application range.
Description
Technical field
The present invention relates to oil well logging, the small-bore directional gyro inclinometer of used for geological prospecting.
Background technology
Directed drilling is one of great technology of oil and gas development, and some developed countries are applied abroad.The deviational survey direction finder that directed drilling is used has various magnetic instrument and frame gyroscope instrument.But small-bore drilling measuring is not met the demands.Especially still the magnetic instrument (as fluxgate) of use is owing to originally experience geology and the influence of ferromagnetic material environment on every side in a large number in China, and certainty of measurement is very low, even can not use, not only precision is low for general frame gyroscope instrument, and diameter is big, and the aligning before and after using is calibrated also quite loaded down with trivial details.Therefore, the exploitation of petroleum industry is badly in need of a kind of small-bore, and is easy to use, be not subjected to surrounding environment influence in addition can the sleeve pipe after completion in or the novel gyroscopic survey direction finder measured in the drilling rod, to satisfy the redevelopment of old filed, the measurement of cluster well and infill well probing.
At present, the inclinometer that uses in the oil well logging construction mainly is the inclinometer of fluxgate type.It adopts three orthogonal angle speedometers to measure the terrestrial gravitation acceleration, and three orthogonal fluxgates are measured geomagnetic fieldvector.Though this gradient meter sensor dependable performance, requiring can not have any ferromagnetic material around the fluxgate.And old well has sleeve pipe, can't provide good no magnetic environment to inclinometer, and therefore the well track that utilizes fluxgate to measure old well can't be realized.On the other hand, all at present gyrolevel bores all more than Φ 60mm, withstand voltage mostly 10Mp.
Summary of the invention
At the prior art above shortcomings, the object of the present invention is to provide the big probing of a kind of compressive resistance of high accuracy continuous measurement with small-bore directional gyro inclinometer.
The object of the present invention is achieved like this: a kind of probing comprises aboveground control device and underground survey equipment two parts with small-bore directional gyro inclinometer; Aboveground control device is made up of computer and control module, connects underground survey equipment by cable, and computer real-time is followed the tracks of the feedback information that shows underground survey equipment; It is characterized in that underground survey equipment comprises the inertia pipe nipple based on flexible gyroscope, by head harness, centralizer, collection remote measurement pipe nipple, gyroscope inertia pipe nipple, increase the weight of short circuit, damper and guide shoe and form; Gather the remote measurement pipe nipple and comprise electronic unit and communication module, be prior art.
Described gyroscope inertia pipe nipple comprises rotary electric machine, and reducer, turning cylinder and sensor; Sensor by the small-sized flexible gyroscope of two double freedoms and three each other the quartz accelerometer of quadrature form, the first small-sized flexible gyroscope of two double freedoms is just being transferred to the rotation skeleton each other with the second small-sized flexible gyroscope and is being connected, and three quartz accelerometers are just being transferred to the rotation skeleton each other and connected; Described gyro and accelerometer are directly installed on the coasting body by locating surface, form inertial measurement cluster, and this assembly is supported on the shell by pair of bearings.
The present invention drills with in the small-bore directional gyro inclinometer, and two small-sized flexible gyroscopes of double freedom and three quartz accelerometers are formed sensors, but can also continuous measurement of static spot measurement, and measuring speed is fast, need not drift correction in the short time.It can be used for the well track repetition measurement, the directed window sidetracking of sleeve pipe.Cased well under the interference environment that is magnetic cooperates other logging methods, and the orientation such as situations such as wearing and tearing, cementings is determined in the orientation of indicating instrument.When in anisotropic formation, carrying out perforating job, adopt the gyroscope orientation, avoid blindly perforation, increase the perforation oil yield.In the whole process, aboveground control device keeps communicating by letter with underground survey equipment, survey data is beamed back ground be used for storage and demonstration.The signal processing that all are relevant with it with the inertia pipe nipple etc. is all finished in underground survey equipment, and this mainly is for real-time of measuring and accuracy, also makes simultaneously aboveground control device and underground survey data transfer between devices amount minimum.
The present invention drills with in the small-bore directional gyro inclinometer, the mechanical layout principle of the inertia pipe nipple system of flexible gyroscope; According to the characteristics of Inertial Measurement Unit, the sensor error model of foundation; Adopt static point to survey the method for aiming at initial attitude.
The present invention finds the solution the inertial navigation equation and obtains inclinometer along three axial angles in the well logging process, realize the azimuth information of real-time well survey output oil well.In order to eliminate the drift of various noise, gyro, adopted digital filtering method that survey data is handled simultaneously.
The invention has the advantages that: volume is little, and cost is low, and precision height, measuring speed are fast, but continuous measurement, the reliability height, high temperature high voltage resistant, the scope of application are wide.
Adopt the present invention, resistance to shock, all there is very big advantage aspects such as certainty of measurement, comprehensive continuous measurement.
Description of drawings
Fig. 1 is that the present invention drills the structural representation with small-bore directional gyro inclinometer.
Fig. 2 is an aboveground control device schematic diagram among the present invention.
Fig. 3 is the structural representation of gyroscope inertia pipe nipple sensor among the present invention.
Fig. 4 is the structural representation of gyroscope inertia pipe nipple embedded computer among the present invention.
The specific embodiment
A kind of probing comprises aboveground control device and underground survey equipment two parts with small-bore directional gyro inclinometer; Aboveground control device is made up of computer and control module, connects underground survey equipment by cable, and computer real-time is followed the tracks of the feedback information that shows underground survey equipment.As shown in Figure 1, device for subsurface measuring comprises the inertia pipe nipple based on flexible gyroscope, relevant electronic unit and communication module, by head harness 1, centralizer 2, gather remote measurement pipe nipple 3, gyroscope inertia pipe nipple 4, increase the weight of short circuit 6, damper 7 and guide shoe 8 and form.Dynamic tuned gyroscope is made up of following elements: elements such as gyrorotor, flexible coupling, torquer, sensor, hysteresis machine and seal casinghousing are formed.A pair of ball bearing is housed on the gyro base, and with the high speed rotation of support drive motor shaft, driving shaft one end is being adorned the rotor of motor, and the other end is being adorned gyrorotor by flexible coupling, and the torquer coil rack links to each other with base with screw with sensor cluster.The upper and lower end cap electricity consumption bundle welding at gyro base two ends also makes the gyro sealing.
Gyroscope inertia pipe nipple (inertia measurement group) 4 core components as inclinometer are made up of elements such as gyrorotor, flexible coupling, torquer, sensor, hysteresis machine and seal casinghousings.A pair of ball bearing is housed on the gyro base, and with the high speed rotation of support drive motor shaft, driving shaft one end is being adorned the rotor of motor, and the other end is being adorned gyrorotor by flexible coupling, and the torquer coil rack links to each other with base with screw with sensor cluster.The upper and lower end cap electricity consumption bundle welding at gyro base two ends also makes the gyro sealing.The bore of described flexible gyroscope is less than 50mm.
Referring to Fig. 3, gyroscope inertia pipe nipple comprises rotary electric machine (47), and reducer, turning cylinder and sensor (omitting reducer, turning cylinder and sensor among the figure), sensor by the small-sized flexible gyroscope (41,42) of two double freedoms and three each other the quartz accelerometer of quadrature (43,44,45) form, the first small-sized flexible gyroscope (41) of two double freedoms is just being transferred to the rotation skeleton each other with the second small-sized flexible gyroscope (42) and is being connected, and three quartz accelerometers (43,44,45) are just being transferred to the rotation skeleton each other and connected.Described two small-sized flexible gyroscopes (41,42) are double-shaft power tuned gyroscope and three quartz accelerometers, they adopt the layout of strapdown machinery in design, described gyro and accelerometer are directly installed on the coasting body by locating surface, form inertial measurement cluster, this assembly is supported on the shell by pair of bearings.Coasting body is located on 0 ° and 180 ° on the survey mark changeing controller.The axis of rotation of coasting body assembly overlaps with down-hole inserting tube axle, and is parallel with the pit shaft axis by inserting tube centralizer 2.Small-sized flexible gyroscope and quartz accelerometer are operated in the force feedback state, gyro to measure earth rotation angular speed component, accelerometer measures gravitational acceleration component.Measured signal is delivered to ground instrument through capturing and coding by single-core cable, and machine resolves the parameters such as angle of slope, azimuth and tool face azimuth that can draw pit shaft as calculated.
Coasting body is the entity of inserting tube coordinate system OXYZ.Gyro and two accelerometers are screwed on coasting body by locating surface separately, make two measurement axis of gyro aim at the XYZ axle respectively; The measurement axis of two accelerometers is aimed at X-axis and Y-axis respectively.The component that they record
Be used for computer azimuth, inclination and tool face azimuth.
The underground survey task mainly comprises: 1) rely on induction earth rate and acceleration of gravity to finish static point and survey, and provide initial value for continuous measurement; 2) finish the real-time Attitude Calculation of instrument, i.e. continuous measurement according to the inertial navigation principle; 3) utilize that the nominal data of storage is online carries out accuracy compensation to inertia device, avoided the signal processing method (as kalman filtering etc.) of macrooperation amount; 4) instrument temperature under the measuring well; 5) measure well depth.
Aboveground control device is made up of computer and control module, it comprises (can dispose ground oil well test car) such as terrestrial interface case, PC, driller's display, printer, depth survey unit, coding module, external ups power supply and various cables, can upload data in real time by cable and show underground survey information.Other manual abridged contents are prior art.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (2)
1. a probing comprises aboveground control device and underground survey equipment two parts with small-bore directional gyro inclinometer; Aboveground control device is made up of computer and control module, connects underground survey equipment by cable, and computer real-time is followed the tracks of the feedback information that shows underground survey equipment; It is characterized in that, underground survey equipment comprises the inertia pipe nipple based on flexible gyroscope, by head harness (1), centralizer (2), gather remote measurement pipe nipple (3), gyroscope inertia pipe nipple (4), increase the weight of short circuit (6), damper (7) and guide shoe (8) and form;
Described gyroscope inertia pipe nipple comprises rotary electric machine (47), and reducer, turning cylinder and sensor; Sensor by the small-sized flexible gyroscope (41,42) of two double freedoms and three each other the quartz accelerometer of quadrature (43,44,45) form, the first small-sized flexible gyroscope (41) of two double freedoms is just being transferred to the rotation skeleton each other with the second small-sized flexible gyroscope (42) and is being connected, and three quartz accelerometers (43,44,45) are just being transferred to the rotation skeleton each other and connected; Described gyro and accelerometer are directly installed on the coasting body by locating surface, form inertial measurement cluster, and this assembly is supported on the shell by pair of bearings.
2. probing according to claim 1 is characterized in that with small-bore directional gyro inclinometer the bore of described flexible gyroscope is less than 50mm.
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| CN201110123888.4A CN102140913B (en) | 2011-05-13 | 2011-05-13 | Small-diameter directional gyro inclinometer for drilling |
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| CN201110123888.4A CN102140913B (en) | 2011-05-13 | 2011-05-13 | Small-diameter directional gyro inclinometer for drilling |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410012A (en) * | 2011-12-29 | 2012-04-11 | 北京蒙德纳科技发展有限公司 | Combined damping system and device for inclination measuring cartridge of wireless drilling inclinometer |
| CN102434148A (en) * | 2011-12-07 | 2012-05-02 | 西安思坦仪器股份有限公司 | Wireless inclinometer while drilling |
| CN102562031A (en) * | 2012-01-17 | 2012-07-11 | 中海油田服务股份有限公司 | Continuous gyroscopic survey system for directional well |
| CN105587310A (en) * | 2014-11-14 | 2016-05-18 | 中国航空工业第六一八研究所 | Calibration method for internal electromagnetic interference error of gyro inclinometer |
| CN106121630A (en) * | 2016-06-15 | 2016-11-16 | 北京科技大学 | A kind of single-axis servo continuous inclinometer Inertial Measurement Unit |
| CN107515001A (en) * | 2017-09-05 | 2017-12-26 | 中国石油大学(华东) | Rotary steering stabilized platform gravity toolface angle dynamic measurement method and device |
| CN108166971A (en) * | 2017-12-26 | 2018-06-15 | 中国石油大学(华东) | A kind of Multifunctional inclination measuring apparatus and the method that the judgement of offset well casing relative position is carried out based on the inclinometer |
| CN108286427A (en) * | 2015-06-12 | 2018-07-17 | 秦燕雯 | A kind of application method of down hole drill positioning magnetic source beacon |
| CN108444472A (en) * | 2018-03-07 | 2018-08-24 | 中煤科工集团西安研究院有限公司 | A kind of underground coal mine hand-held gyrocompass and its measurement method |
| CN109387201A (en) * | 2017-08-07 | 2019-02-26 | 航天科工惯性技术有限公司 | It is a kind of for it is small-sized with bore gyrolevel inserting tube structure |
| CN109751995A (en) * | 2018-12-18 | 2019-05-14 | 中煤科工集团西安研究院有限公司 | Based on the mine of gyro with brill drilling track measuring system and measurement method |
| CN111878056A (en) * | 2020-05-11 | 2020-11-03 | 中国科学院地质与地球物理研究所 | Gyro measurement while drilling system and method |
| CN112710291A (en) * | 2020-12-16 | 2021-04-27 | 成都多贝石油工程技术有限公司 | Accurate contra-rotating structure of gyro probe |
| CN113294140A (en) * | 2021-04-15 | 2021-08-24 | 中石化石油工程技术服务有限公司 | Perforation tensiometer |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434148A (en) * | 2011-12-07 | 2012-05-02 | 西安思坦仪器股份有限公司 | Wireless inclinometer while drilling |
| CN102410012A (en) * | 2011-12-29 | 2012-04-11 | 北京蒙德纳科技发展有限公司 | Combined damping system and device for inclination measuring cartridge of wireless drilling inclinometer |
| CN102562031A (en) * | 2012-01-17 | 2012-07-11 | 中海油田服务股份有限公司 | Continuous gyroscopic survey system for directional well |
| CN102562031B (en) * | 2012-01-17 | 2014-08-27 | 中海油田服务股份有限公司 | Continuous gyroscopic survey system for directional well |
| CN105587310A (en) * | 2014-11-14 | 2016-05-18 | 中国航空工业第六一八研究所 | Calibration method for internal electromagnetic interference error of gyro inclinometer |
| CN105587310B (en) * | 2014-11-14 | 2018-11-16 | 中国航空工业第六一八研究所 | A kind of scaling method of gyrolevel inside electromagnetic interference error |
| CN108286427A (en) * | 2015-06-12 | 2018-07-17 | 秦燕雯 | A kind of application method of down hole drill positioning magnetic source beacon |
| CN106121630A (en) * | 2016-06-15 | 2016-11-16 | 北京科技大学 | A kind of single-axis servo continuous inclinometer Inertial Measurement Unit |
| CN106121630B (en) * | 2016-06-15 | 2019-06-07 | 北京科技大学 | A kind of single-axis servo continuous inclinometer Inertial Measurement Unit |
| CN109387201A (en) * | 2017-08-07 | 2019-02-26 | 航天科工惯性技术有限公司 | It is a kind of for it is small-sized with bore gyrolevel inserting tube structure |
| CN107515001B (en) * | 2017-09-05 | 2019-11-01 | 中国石油大学(华东) | Rotary steering stabilized platform gravity toolface angle dynamic measurement method and device |
| CN107515001A (en) * | 2017-09-05 | 2017-12-26 | 中国石油大学(华东) | Rotary steering stabilized platform gravity toolface angle dynamic measurement method and device |
| WO2019128886A1 (en) * | 2017-12-26 | 2019-07-04 | 中国石油大学(华东) | Multi-functional inclinometer and inclinometer-based method for determining relative position of casing in adjacent well |
| CN108166971A (en) * | 2017-12-26 | 2018-06-15 | 中国石油大学(华东) | A kind of Multifunctional inclination measuring apparatus and the method that the judgement of offset well casing relative position is carried out based on the inclinometer |
| CN108166971B (en) * | 2017-12-26 | 2019-12-03 | 中国石油大学(华东) | A kind of Multifunctional inclination measuring apparatus and the method based on inclinometer progress offset well casing relative position judgement |
| CN108444472A (en) * | 2018-03-07 | 2018-08-24 | 中煤科工集团西安研究院有限公司 | A kind of underground coal mine hand-held gyrocompass and its measurement method |
| CN109751995A (en) * | 2018-12-18 | 2019-05-14 | 中煤科工集团西安研究院有限公司 | Based on the mine of gyro with brill drilling track measuring system and measurement method |
| CN111878056A (en) * | 2020-05-11 | 2020-11-03 | 中国科学院地质与地球物理研究所 | Gyro measurement while drilling system and method |
| CN111878056B (en) * | 2020-05-11 | 2021-04-13 | 中国科学院地质与地球物理研究所 | Gyro measurement while drilling system and method |
| CN112710291A (en) * | 2020-12-16 | 2021-04-27 | 成都多贝石油工程技术有限公司 | Accurate contra-rotating structure of gyro probe |
| CN113294140A (en) * | 2021-04-15 | 2021-08-24 | 中石化石油工程技术服务有限公司 | Perforation tensiometer |
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